最近写一个关于单片机播放音乐的程序,出现如下错误: *** ERROR L107: ADDRESS SPACE OVERFLOW ... ... Program Size: data=167.6 xdata=0 code=5314 Target not created 仔细想想,我用的是AT89C52,片上RAM有256字节,应该不会overflow啊,如果将Keil的编译模式选用compact或large则编译可以顺利通过,但生成的HEX文件无法使用. 关于此问题,网上的有关信息如下: Kei…
监听启动或是停止时提示如下错误:TNS-12542: TNS:address already in use TNS-12560: TNS:protocol adapter error TNS-00512: Address already in use Linux Error: 98: Address already in useListener failed to start. See the error message(s) above... [oracle@rusky admin]$ net…
UDP socket : read error Bad address 在写UDP server.在调用套接字读取的时候发生了这个错误. 通过看errno.h 能够看到相应的错误号 EFAULT: Bad address (POSIX.1),在stackoverflow上看到的这个解释不错: It happen if the memory address of some argument passed to sendto (or more generally to any system cal…
查看数据库监听状态不对$ lsnrctl status LSNRCTL for IBM/AIX RISC System/6000: Version 10.2.0.5.0 - Production on 05-NOV-2012 08:54:08 Copyright (c) 1991, 2010, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=test)(PORT=1521)…
error:flask,sqlalchemy.exc.OperationalError: (MySQLdb._exceptions.OperationalError) (1071, 'Specified key was too long; max key length is 767 bytes') 分析:数据库类型字符不对(默认latin) 解决:ALTER DATABASE `databasename` CHARACTER SET utf8;…
同时在自己电脑上装了oracle客户端和服务器,上次还能用呢,这次突然用不了. [oracle@R39i oracle]$ sqlplus scott/tiger SQL*Plus: Release 9.2.0.4.0 - Production on Mon Nov 24 11:06:50 2008 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.ERROR:ORA-01034: ORACLE not avail…